• Fredy1422
      link
      fedilink
      English
      arrow-up
      8
      ·
      6 months ago

      they have, although some do take AA or AAA batteries but its very uncommon. some especially carbon monixide dectectors have internal batteries that require replacement.

      • variants@possumpat.io
        link
        fedilink
        English
        arrow-up
        8
        arrow-down
        1
        ·
        6 months ago

        We just bought new smoke detectors and they take AA, I bought a 9v just out of assumption and got home and was blown away

          • randombullet@programming.dev
            link
            fedilink
            English
            arrow-up
            3
            ·
            6 months ago

            Eh not quite. AA are 1.5v so two would only be 3v.

            You might be thinking of the big 6v lantern batteries. They’re usually 4 x 1.5v cells together.

            • GladiusB@lemmy.world
              link
              fedilink
              English
              arrow-up
              1
              ·
              6 months ago

              I thought I watched some YouTube video where they linked them and it worked. But who knows how accurate the numbers were. I guess not since you know.